HP Caliper User's Guide

core's other hyperthread or were lost to
HyperThreading overhead.
traps Measurement Metrics
See Table B-26 “Information in traps Measurement Reports”.
In this table, “program object” refers to any of the following:
• Thread
• Load module
• Function
• Source statement
• Instruction
Table B-26 Information in traps Measurement Reports
DescriptionColumn
Percent of the total trap samples attributable to a given program object.% Total Trap
Samples
Running sum of the percent of total trap samples accounted for by the given program
object and those listed above it.
Cumulat % of Total
Total number of trap samples attributed to the given program object.Trap Samples
Total number of these traps attributed to the given program object. “Other” is the
total number of all the remaining traps attributed to the given program object.
Samples Per Trap
Kernel Thread ID suffixed with the the name of the routine that the thread will
execute once it is created.
Kernel Thread
Identification
Number
Shared library or the main executable.Load Module
Routine from your application.Function
Source file associated with a function.File
The column contains one of these:
• A source-code line number for rows showing statements
• An instruction slot number for rows showing instructions not on a bundle
boundary
• A source-code column number followed by an offset from the beginning address
of a function for rows showing instructions on a bundle boundary
Column and line numbers are preceded by “~” when they are approximate due to
optimization.
Line |
Slot |
Col,Offset
The column contains either a source statement preceded by “>” or a disassembled
instruction. Statements that are out of order due to optimization are preceded by
“*>”.
>Statement |
Instruction
296 Descriptions of Measurement Reports